阅读说明：本技术 一种防水岸电插座插头 (Waterproof shore power socket plug ) 是由 刘源泂 杨运政 蒋国忠 张腾飞 黄益斌 于 2019-08-20 设计创作，主要内容包括：本发明公开了一种防水岸电插座插头。它包括插座本体、插头,所述插座本体包括中部的主腔室以及功能臂,功能臂的空腔内设有限位槽、压杆及限位槽顶部的导向压块,所述限位槽内设有斜滑块、横向弹簧、顶紧弹簧、径向限位柱、限位螺母,限位槽的近端有一通向主腔室的连通孔,所述斜滑块的头部与径向限位柱尾部相抵,径向限位柱前部可活动地穿过连通孔,所述插头上设有与径向限位柱头部相应的卡槽；所述压杆下部从导向压块的导向孔中向下伸入限位槽内并与斜滑块相抵。本发明的插头插座具有良好的密封防水防尘效果,加工和使用方便、定位准确。(The invention discloses a waterproof shore power socket plug. The socket comprises a socket body and a plug, wherein the socket body comprises a main cavity and a functional arm in the middle, a limiting groove, a pressing rod and a guide pressing block at the top of the limiting groove are arranged in the cavity of the functional arm, an inclined sliding block, a transverse spring, a jacking spring, a radial limiting column and a limiting nut are arranged in the limiting groove, a communication hole leading to the main cavity is formed in the near end of the limiting groove, the head of the inclined sliding block abuts against the tail of the radial limiting column, the front part of the radial limiting column movably penetrates through the communication hole, and a clamping groove corresponding to the head of the radial limiting column is formed in the plug; the lower part of the pressure lever extends downwards into the limit groove from the guide hole of the guide pressure block and is propped against the inclined slide block. The plug and socket provided by the invention has good sealing, waterproof and dustproof effects, is convenient to process and use, and is accurate in positioning.)

1. The utility model provides a waterproof shore connection socket plug, includes socket ontology, plug (15), its characterized in that: the socket body comprises a main cavity (1) in the middle and a functional arm (3) connected with the outer side of the main cavity (1), a limiting groove (26), a pressing rod (12) and a guide pressing block (9) at the top of the limiting groove (26) are arranged in a cavity of the functional arm (3), an inclined sliding block (6), a transverse spring (4), a jacking spring (5), a radial limiting column (7) and a limiting nut (10) are arranged in the limiting groove (26), a communicating hole (25) leading to the main cavity (1) is formed in one end, close to the main cavity (1), of the limiting groove (26), the head of the inclined sliding block (6) is abutted against the tail of the radial limiting column (7), the front part of the radial limiting column (7) movably penetrates through the communicating hole (25), and a clamping groove (19) corresponding to the head of the radial limiting column (7) is formed in the plug (15); the rear part of the radial limiting column (7) positioned in the limiting groove (26) is sleeved with a transverse spring (4), the transverse spring (4) is in a compressed state and applies a force far away from the main cavity (1) to the radial limiting column (7), the lower part of the compression bar (12) extends downwards into the limiting groove (26) from a guide hole of the guide pressing block (9) and is abutted against the inclined sliding block (6), a limiting nut (10) is further arranged at the part of the lower part of the compression bar (12) positioned below the guide hole of the guide pressing block (9), a flexible sealing sleeve (11) sleeved on the compression bar (12) is arranged on the guide hole of the guide pressing block (9), the jacking spring (5) is arranged below the inclined sliding block (6) and jacks the inclined sliding block (6) upwards, and when the plug and the socket need to be inserted, the upper part of the compression bar (12) is driven by an external force to move downwards from the guide hole of the guide pressing, and extrude oblique slider (6) and move down together, the work inclined plane of oblique slider (6) keeps away from radial spacing post (7) afterbody, radial spacing post is advanced to main cavity room (1) distal end under the elasticity of transverse spring (4), the head income intercommunicating pore (25) of radial spacing post (7), when plug (15) insert when target in place, remove external force, top tension spring (5) jack-up oblique slider (6) and depression bar (12) upwards reach and reset, radial spacing post (7) and transverse spring (4) are extruded to the work inclined plane of oblique slider (6) simultaneously, make the bulb embedding draw-in groove (19) on plug (15) of radial spacing post (7) reach tight fixed position.

2. the watertight shore power plug socket according to claim 1, wherein: the number of the functional arms (3) is 2, and the functional arms are symmetrically distributed on two sides of the main chamber (1).

3. The watertight shore power plug socket according to claim 1, wherein: the tail of the column body of the radial limiting column (7) is a convex block, the convex block is provided with an inclined plane parallel to the working inclined plane of the inclined sliding block (6), the transverse spring (4) is sleeved at the column body of the radial limiting column (7) and is arranged between the side wall of the communication hole (25) and the convex block at the tail of the limiting column (7), the cross section of the limiting groove (26) is rectangular, the radial longitudinal section of the head of the radial limiting column (7) is triangular, and the clamping groove (19) in the plug (15) is triangular matched with the head of the radial limiting column (7) in shape and size.

4. The watertight shore power plug socket according to claim 1, wherein: the guide hole of the guide pressing block (9) is a stepped hole, the inner diameter of the upper hole opening of the guide pressing block is smaller than the hole diameter of the lower part of the guide hole, the sealing sleeve (11) is arranged at the small hole at the upper part of the guide hole of the guide pressing block (9), the limiting nut (10) is in threaded connection with the pressing rod (12), and the outer diameter of the limiting nut (10) is between the large hole diameter and the small hole diameter of the guide hole of the guide pressing block (9) and is arranged in the large hole at the lower part.

5. The watertight shore power plug socket according to claim 1, wherein: the left shoulder and the right shoulder of the limiting groove (26) of the functional arm (3) are provided with pressing sheets (8), the guide pressing block (9) is arranged on the pressing sheets (8), a sealing ring is arranged between the pressing sheets (8) and the guide pressing block (9), and the pressing sheets (8) and the guide pressing block (9) are fixed on the two shoulders at the top of the limiting groove (26) through screws (13).

6. The watertight shore power plug socket according to claim 1, wherein: the distribution direction of spacing groove (26), intercommunicating pore (25) direction all are perpendicular with the advancing direction of plug (15) in main cavity room (1), the advancing direction of depression bar (12) in direction briquetting (9) guiding hole is parallel with the advancing direction of plug (15) in main cavity room (1), the work inclined plane of oblique slider (6) is 45 degrees with the advancing direction of plug (15) in main cavity room (1).

7. The watertight shore power plug socket according to claim 1, wherein: be equipped with one-level embedded groove (23) and second grade embedded groove (24) in socket (1), be equipped with sealing washer (21) in one-level embedded groove (23), be equipped with sealed clamping ring (22) in second grade embedded groove (24), sealed clamping ring (22) cross-section is "concave" type structure, and after plug (15) inserted the target in place, plug (15) side compresses tightly sealing washer (21) and constitutes one-level waterproof, and bottom surface and the side of plug (15) bottom and side compression sealed clamping ring (22) constitute the sealed waterproof of second grade.

8. The watertight shore power plug socket according to claim 2, wherein: a protective cover (17) is arranged on the outer side of the plug (15), the protective cover (17) comprises an upper sleeve and a lower cover body, a plurality of positioning grooves (18) are uniformly distributed on the outer side of the middle position of the plug (15), and a convex rail (20) corresponding to the positioning grooves (18) is arranged on the inner wall of the upper sleeve of the protective cover (17); in a non-working state, the protective cover (17) is arranged between the plug (15) and the cable joint (16), the outer ring bulge outer diameter of the cable joint (16) is larger than the inner diameter of the upper sleeve of the protective cover (17) and the protective cover (17) cannot slide out from the cable side; when the plug (15) is inserted into the socket (1) in place, the convex rail (20) of the protective cover (17) and the positioning groove (18) form interference fit, the sleeve on the upper part of the protective cover (17) also forms interference fit with the plug (15), the positioning groove (18) does not penetrate through the outer wall of the plug, and the cover body on the lower part of the protective cover (17) corresponds to the functional arm (3) in shape and covers the functional arm (3).

9. The watertight shore power plug socket according to claim 1, wherein: socket body still is equipped with sealed lid (14), and under non-operating condition, sealed lid (14) can cover main cavity room (1) and function arm (3), and sealed lid (14) mid portion and flank part are respectively through the sealed sealing washer corresponding with main cavity room (1) and function arm (3) shape size with main cavity room (1) and function arm (3) airtight closing cap, and sealed lid (14) are covered the back and are sealed with socket body chucking through dop (2).

Technical Field

The invention relates to the technical field of shore power, in particular to a waterproof shore power socket plug.

Background

at present, the resource and environment constraint pressure faced by economic development of China is increasing day by day, and particularly in recent years, severe haze frequently appearing in middle and east regions has great attention to all the social circles due to large range, heavy degree and long duration. In densely populated coastal and coastal port cities, pollutant emissions generated by using auxiliary engines to generate electricity during ship berthing are important factors affecting air quality, and the use of shore power is the best way to solve this problem. The shore power technology for ship connection refers to that a generator on a ship is stopped and a land power supply is used for supplying power during the harboring of the ship. Ports are a major source of atmospheric pollution in port cities, and the pollutants are mainly from cargo handling operations and port-berthing ship emissions. The shore power is used for turning off the auxiliary engine during the docking of the ship, and the port supplies shore power. The international sailing ship has different electric system from that of China, so that the shore power technology is obviously complicated in order to ensure the working continuity of the ship navigation equipment, ensure that the ship cannot be powered off when receiving shore power, cannot influence the safety production of ports and the like. In general, a high-power shore power supply inlet wire part and a variable-voltage variable-frequency part are integrated in a standard container, a shore power supply socket box is arranged at the front edge of a wharf, and a cable drum or a cable lifting device is selected according to actual field conditions. The shore power supply has higher standard than the common variable frequency power supply, the core inversion module group is mainly formed by interconnecting an IGBT (insulated gate bipolar transistor), a switching power supply, a radiator, an electrolytic capacitor, an absorption capacitor, a driving board, a copper plate and the like, the module group adopts an IGBT inversion technology, has high reliability and small volume, greatly saves manufacturing materials, and has light weight and convenient movement; the optimal technical parameters are automatically matched, and the wiring inductance is reduced. The reliability of the system is enhanced, and the capacitance distribution is more uniform, and the structure is more compact, concise and beautiful. A shore electric socket box is arranged at the front edge of the wharf and internally provided with a high-voltage aviation plug, so that ship-shore power connection is realized. In the whole shore power system, a shore power plug socket is an essential important part, and the existing shore power plug socket has poor integrity, relatively few functions, unobvious functions such as sealing performance, forced separation performance and the like.

disclosure of Invention

The invention aims to solve the problems in the prior art and provides a shore power plug and socket with high-grade waterproof performance and a forced separation function.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a waterproof shore power socket plug comprises a socket body and a plug, wherein the socket body comprises a main cavity in the middle and a functional arm connected with the outer side of the main cavity, a limiting groove, a pressing rod and a guide pressing block at the top of the limiting groove are arranged in a cavity of the functional arm, an inclined sliding block, a transverse spring, a jacking spring, a radial limiting column and a limiting nut are arranged in the limiting groove, a communication hole leading to the main cavity is formed in one end, close to the main cavity, of the limiting groove, the head of the inclined sliding block abuts against the tail of the radial limiting column, the front part of the radial limiting column movably penetrates through the communication hole, and a clamping groove corresponding to the head of the radial limiting column is formed in the plug; the rear part of the radial limiting column, which is positioned in the limiting groove, is sleeved with a transverse spring, the transverse spring is in a compressed state and applies a force far away from the main cavity to the radial limiting column, the lower part of the pressure rod extends downwards into the limiting groove from a guide hole of the guide pressure block and is abutted against the inclined slide block, the part of the lower part of the pressure rod, which is positioned below the guide hole of the guide pressure block, is also provided with a limiting nut, a flexible sealing sleeve sleeved on the pressure rod is arranged on the guide hole of the guide pressure block, the jacking spring is arranged below the inclined slide block and jacks the inclined slide block upwards, when the plug and the socket need to be inserted, the upper part of the pressure rod is driven by external force to move downwards from the guide hole of the guide pressure block and extrudes the inclined slide block to move downwards together, the working inclined plane of the inclined slide block is far away from the tail part of the radial limiting column, when the plug is inserted in place, external force is removed, the jacking spring jacks up the inclined sliding block and the pressing rod to reset, and meanwhile, the working inclined plane of the inclined sliding block extrudes the radial limiting column and the transverse spring, so that the ball head of the radial limiting column is embedded into the clamping groove in the plug to achieve a fixed position.

Preferably, the number of the functional arms is 2, and the functional arms are symmetrically distributed on two sides of the main chamber.

Preferably, the tail of the radial limiting column body is a convex block, the convex block is provided with an inclined plane parallel to the working inclined plane of the inclined sliding block, the transverse spring is sleeved at the position of the radial limiting column body and is arranged between the side wall of the communication hole and the convex block at the tail of the limiting column, the cross section of the limiting groove is rectangular, the radial longitudinal section of the head of the radial limiting column is triangular, and the clamping groove on the plug is triangular matched with the head of the radial limiting column in shape and size.

Preferably, the guide pressing block guide hole is a stepped hole, the inner diameter of an upper hole opening of the guide pressing block guide hole is smaller than that of a lower hole opening of the guide pressing block guide hole, the sealing sleeve is arranged at a small hole opening of the upper portion of the guide pressing block guide hole, the limiting nut is in threaded connection with the pressing rod, and the outer diameter of the limiting nut is between the large hole diameter and the small hole diameter of the guide pressing block guide hole and is arranged in the large hole opening.

Preferably, the left shoulder and the right shoulder of the limiting groove of the functional arm are provided with pressing sheets, the guide pressing block is arranged on the pressing sheets, a sealing ring is arranged between the pressing sheets and the guide pressing block, and the pressing sheets and the guide pressing block are fixed on the two shoulders of the top of the limiting groove through screws.

Preferably, the distribution direction of the limiting grooves and the direction of the communicating holes are both perpendicular to the advancing direction of the plug in the main cavity, the advancing direction of the pressure rod in the guide hole of the guide pressure block is parallel to the advancing direction of the plug in the main cavity, and the working inclined plane of the inclined sliding block forms an angle of 45 degrees with the advancing direction of the plug in the main cavity.

preferably, be equipped with one-level embedded groove and second grade embedded groove in the socket, be equipped with the sealing washer in the one-level embedded groove, be equipped with sealed clamping ring in the second grade embedded groove, sealed clamping ring cross-section is "concave" type structure, and when the plug inserts the back that targets in place, the plug side compresses tightly the sealing washer and constitutes the one-level waterproof, and the bottom surface and the side that plug bottom and side compressed tightly sealed clamping ring constitute the sealed waterproof of second grade.

Preferably, a protective cover is arranged on the outer side of the plug, the protective cover comprises an upper sleeve and a lower cover body, a plurality of positioning grooves are uniformly distributed on the outer side of the middle position of the plug, and a convex rail corresponding to the positioning grooves is arranged on the inner wall of the upper sleeve of the protective cover; under the non-working state, the protective cover is arranged between the plug and the cable joint, and the outer diameter of the outer ring bulge of the cable joint is larger than the inner diameter of the sleeve on the upper part of the protective cover, so that the protective cover cannot slide out from the cable side; when the plug is inserted into the socket in place, the convex rail of the protective cover and the positioning groove form interference fit, the sleeve at the upper part of the protective cover also forms interference fit with the plug, the positioning groove does not penetrate through the outer wall of the plug, and the cover body at the lower part of the protective cover corresponds to the functional arm in shape and covers the functional arm. Form the dustproof and sunscreen of the sealing sleeve.

Preferably, the socket body is further provided with a sealing cover, the sealing cover can cover the main cavity and the functional arm in a non-working state, the middle part and the side wing part of the sealing cover respectively seal and cover the main cavity and the functional arm in a sealing mode through sealing rings corresponding to the main cavity and the functional arm in shape and size, and the sealing cover is clamped and sealed with the socket body through a clamping head after being covered.

Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects:

According to the invention, through the accurate positioning of the radial limiting column and the clamping groove on the plug, the plug is easy to insert, the inserting and pulling force for inserting and separating is small, the positioning is accurate and the operation is convenient.

According to the invention, the position and the stroke of the radial limiting column and the inclined slide block which can reset are arranged on the socket, and the radial limiting column and the inclined slide block are arranged to provide a movable space through the limiting groove, so that the plug can be quickly positioned and pulled out when being inserted into the socket.

The invention leads and positions the pressure rod by the guide pressure block, installs the sealing sleeve to form the sealing waterproof and dustproof for the control rod by the small hole of the stepped hole of the guide pressure block, and leads the guide pressure block to arrange the sealing waterproof and dustproof for the whole function arm by the sealing ring and the pressure sheet, thereby leading the whole structure to be compact, the structure to be small and exquisite, the function to be rich, and the function to be waterproof and dustproof.

According to the invention, by installing the radial limiting column, the inclined slide block, the transverse spring and the jacking spring, when the plug is subjected to a pulling force far exceeding a normal plugging force, the combination body of the ball head limiting column and the guide inclined block can forcibly extrude the spring, so that the radial limiting column and the inclined slide block move outwards, and finally the plug is forcibly separated; the tension value of the forced separation is set by adjusting the elastic values of the transverse spring and the jacking spring and by changing the size parameters of the radial limiting column and the inclined slide block (such as the inclination of the inclined plane of the inclined slide block, the shape angle of the head of the radial limiting column and the like); the forced separation function is to protect the plug from being damaged when the plug is under abnormal tension, and the forced separation mechanism has a small and exquisite structure and is convenient to install, the tension value can be set and is convenient to adjust, and the forced separation mechanism is convenient to process and realize functions.

The socket core part is provided with the primary embedded groove and the sealing ring, and the secondary embedded groove and the sealing pressing ring are matched to improve the waterproof grade, and particularly, the concave section design of the secondary embedded groove and the sealing pressing ring directly provides resilience force for the plug from the bottom surface and the side surface, so that the socket is more sealed and waterproof.

According to the invention, through the arrangement of the protective cover and the sealing cover, the functional arm and parts such as the sealing sleeve and the like in the functional arm can be protected from dust and sunlight both when a plug is inserted into a socket and when the socket is not plugged.

Drawings

Fig. 1 is a schematic structural diagram of a waterproof shore power socket plug of the present invention;

Fig. 2 is a schematic view of a socket structure in a waterproof shore power socket plug of the present invention;

Fig. 3 is an exploded view of a waterproof socket of a shore power outlet plug according to the present invention;

Fig. 4 is a schematic structural diagram of the socket body of the waterproof shore power socket plug, which omits a radial limiting column, an inclined slide block, a transverse spring, a jacking spring, a pressing sheet, a pressing rod, a guide pressing block, a screw, a sealing sleeve and other parts;

Figure 5 is a cross-sectional view of a waterproof shore power outlet plug of the present invention;

Fig. 6 is a schematic diagram of a plug structure of a waterproof shore power socket plug according to the present invention;

Fig. 7 is a schematic view of a protective cover structure of a waterproof shore power socket plug according to the present invention;

FIG. 8 is an enlarged fragmentary view taken at A of FIG. 5 of the present invention;

The reference numbers in the figures are as follows: 1-a main chamber; 2-clamping the head; 3-a functional arm; 4-a transverse spring; 5-tightening the spring; 6-inclined slide block; 7-radial limiting columns; 8-tabletting; 9-guiding pressing blocks; 10-a limit nut; 11-a sealing sleeve; 12-a pressure bar; 13-a screw; 14-a sealing cover; 15-a plug; 16-a cable joint; 17-a protective cover; 18-a positioning groove; 19-a card slot; 20-raised rail; 21-a sealing ring; 22-sealing pressing ring; 23-a primary embedded groove; 24-a secondary embedded groove; 25-a communicating hole; 26-limiting groove.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the embodiments of the present invention and the accompanying drawings.

As shown in fig. 1-8, the waterproof shore power socket plug of the present invention comprises a socket body and a plug 15, wherein the socket body comprises a main chamber 1 at the middle part and a functional arm 3 connected with the outer side of the main chamber 1, a limiting groove 26, a pressure bar 12 and a guide pressing block 9 at the top of the limiting groove 26 are arranged in the cavity of the functional arm 3, an inclined slider 6, a transverse spring 4, a tightening spring 5, a radial limiting column 7 and a limiting nut 10 are arranged in the limiting groove 26, a communication hole 25 leading to the main chamber 1 is arranged at one end of the limiting groove 26 close to the main chamber 1 (i.e. the side wall at the junction of the functional arm 3 and the main chamber 1), the head of the inclined slider 6 (the end close to the main chamber 1) is abutted against the tail of the radial limiting column 7, the front part of the radial limiting column 7 movably penetrates through the communication hole 25, the head of the inclined slider 6 is provided with a working inclined plane, the plug 15 is provided with a clamping groove 19 corresponding to the head of the radial limiting column 7; the rear part of the radial limiting column 7, which is positioned in the limiting groove 26, is sleeved with a transverse spring 4, the transverse spring 4 is in a compressed state and applies a force far away from the main cavity 1 to the radial limiting column 7, the lower part of the compression rod 12 extends downwards into the limiting groove 26 from a guide hole of the guide pressing block 9 and is abutted against the inclined sliding block 6, a limiting nut 10 is further installed on the part of the lower part of the compression rod 12, which is positioned below the guide hole of the guide pressing block 9, a flexible sealing sleeve 11 which is sleeved on the compression rod 12 is arranged on the guide hole of the guide pressing block 9, the jacking spring 5 is arranged below the inclined sliding block 6 and jacks the inclined sliding block 6 upwards, when the plug and the socket need to be inserted, the upper part of the compression rod 12 is driven by an external force to move downwards from the guide hole of the guide pressing block 9 and extrude the inclined sliding block 6 to move downwards together, the working inclined plane of the inclined sliding block 6 is far away from the tail, the head of the radial spacing column 7 is collected into the communicating hole 25, when the plug 15 is inserted in place, the external force is removed, the jacking spring 5 jacks up the inclined slide block 6 and the pressure rod 12 to reset, and meanwhile, the working inclined plane of the inclined slide block 6 extrudes the radial spacing column 7 and the transverse spring 4, so that the ball head of the radial spacing column 7 is embedded into the clamping groove 19 on the plug 15 to achieve a fastening position.

the number of the functional arms 3 can be 2, and the functional arms are symmetrically distributed on two sides of the main chamber 1.

When the plug 15 is normally pulled out, external force acts on the pressure levers 12 in the two symmetrical functional arms 3, so that the pressure levers 12 and the inclined sliding blocks 6 move downwards, the radial limiting columns 7 move outwards, and the socket is normally pulled out; when the plug is subjected to a pulling force far exceeding a normal plugging force, the ball head part of the radial limiting column 7 is forcibly extruded by the plug 15 and then moves towards the functional arm 3 (far end), the ball head part of the radial limiting column 7 extending into the main cavity 1 moves back to the communicating hole 25, and finally the plug 15 is forcibly separated. The tension value of the forced separation is set by adjusting the elastic force value of the transverse spring 4 which is pressed against the inclined slide block 6 and by changing the size parameters of the combination of the radial limiting column 7 and the inclined slide block 6 (such as adjusting the inclination of the inclined plane of the inclined slide block 6, the shape angle of the head of the radial limiting column 7 and the like); the forced separation function is to protect the plug 15 from being damaged when abnormal tension is applied, the cable, the plug and the socket are not damaged, the forced separation mechanism is small and exquisite in structure and convenient to install, the tension value can be set and is convenient to adjust, and the forced separation mechanism is convenient to process and realize functions.

the tail part of the column body of the radial limiting column 7 is provided with a convex block which is provided with an inclined plane parallel to the working inclined plane of the inclined slide block 6, the transverse spring 4 is sleeved at the column body of the radial limiting column 7 and is arranged between the side wall of the communication hole 25 and the convex block at the tail part of the limiting column 7, the cross section of the limiting groove 26 is rectangular, the radial longitudinal section of the head part of the radial limiting column 7 is triangular, and the clamping groove 19 on the plug 15 is triangular matched with the head part of the radial limiting column 7 in shape and size. The guide hole of the guide pressing block 9 is a stepped hole, the inner diameter of the upper hole opening of the guide pressing block is smaller than the hole diameter of the lower part of the guide hole, the sealing sleeve 11 is arranged at the small hole at the upper part of the guide hole of the guide pressing block 9, the limiting nut 10 is in threaded connection with the pressing rod 12, and the outer diameter of the limiting nut 10 is between the large hole diameter and the hole diameter of the guide hole of the guide pressing block 9 and is arranged in the large hole at.

The left shoulder and the right shoulder of the limiting groove 26 of the functional arm 3 are provided with pressing sheets 8, the guide pressing block 9 is arranged on the pressing sheets 8, a sealing ring is arranged between the pressing sheets 8 and the guide pressing block 9, and the pressing sheets 8 and the guide pressing block 9 are fixed at the two shoulders of the top of the limiting groove 26 through screws 13. The direction briquetting 9 is spacing to the direction and the location of depression bar 12, the aperture installation seal cover 11 of the 9 shoulder holes of direction briquetting forms sealed waterproof dustproof to depression bar 12, direction briquetting 9 passes through the waterproof dustproof setting of sealed of whole function arm 3 of sealing washer and preforming 8 for whole compact structure, small and exquisite and the function of structure are abundant, waterproof dustproof.

the distribution direction of the limiting groove 26 and the direction of the communicating hole 25 are both perpendicular to the advancing direction of the plug 15 in the main chamber 1, the advancing direction of the compression bar 12 in the guide hole of the guide pressing block 9 is parallel to the advancing direction of the plug 15 in the main chamber 1, and the working inclined plane of the inclined sliding block 6 forms an angle of 45 degrees with the advancing direction of the plug 15 in the main chamber 1.

Be equipped with one-level embedded groove 23 and second grade embedded groove 24 in the socket 1, be equipped with sealing washer 21 in the one-level embedded groove 23, be equipped with sealed clamping ring 22 in the second grade embedded groove 24, sealed clamping ring 22 cross-section is "concave" type structure, and after plug 15 inserted the target in place, the plug 15 side compresses tightly sealing washer 21 and constitutes the one-level waterproof, and the bottom surface and the side that plug 15 bottom and side compressed tightly sealed clamping ring 22 constitute the sealed waterproof of second grade. The waterproof grade is improved by arranging the first-stage embedded groove 23 and the sealing ring 21 at the core part of the socket and the matching of the second-stage embedded groove 24 and the sealing pressing ring 22, and particularly, the concave section design of the second-stage embedded groove 24 and the sealing pressing ring 22 directly provides resilience force for the plug 15 from the bottom surface and the side surface, so that the socket is more sealed and waterproof.

a protective cover 17 is arranged on the outer side of the plug 15, the protective cover 17 comprises an upper sleeve and a lower cover body, a plurality of positioning grooves 18 are uniformly distributed on the outer side of the middle position of the plug 15, and a convex rail 20 corresponding to the positioning grooves 18 is arranged on the inner wall of the upper sleeve of the protective cover 17; in a non-working state, the protective cover 17 is arranged between the plug 15 and the cable connector 16, and the outer ring bulge outer diameter of the cable connector 16 is larger than the inner diameter of the sleeve at the upper part of the protective cover 17, so that the protective cover 17 cannot slide out from the cable side; when the plug 15 is inserted into the socket 1 in place, the protruding rail 20 of the protection cover 17 forms an interference fit with the positioning groove 18, the sleeve on the protection cover 17 also forms an interference fit with the plug 15, the positioning groove 18 does not penetrate through the outer wall of the plug, and the cover body on the lower portion of the protection cover 17 corresponds to the functional arm 3 in shape and covers the functional arm 3. The dustproof and sunscreen of the sealing sleeve 11 is realized.

Socket body still is equipped with sealed lid 14, and under non-operating condition, sealed lid 14 can cover main cavity 1 and function arm 3, and sealed 14 middle part of covering and flank part are respectively through the sealed sealing washer corresponding with main cavity 1 and function arm 3 shape size with main cavity 1 and function arm 3 airtight closing cap, and sealed 14 back of covering realizes waterproof dustproof through dop 2 and socket body chucking sealed.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.